Peer-to-Peer networking is to allow computers to communicate directly with each other, rather than through a central server like a website. Once you have a peer-to-peer application installed, you can allow anyone i world to copy files from your home PC. That means that anyone o Internet who is fairly savvy can access your hard-drive - including confidential documents. 35% of all P2Psharing is pornographic and can include viruses, trojans and spyware.View a list of P2P applications.